CN104541438B - Bus bar unit - Google Patents
Bus bar unit Download PDFInfo
- Publication number
- CN104541438B CN104541438B CN201480002098.2A CN201480002098A CN104541438B CN 104541438 B CN104541438 B CN 104541438B CN 201480002098 A CN201480002098 A CN 201480002098A CN 104541438 B CN104541438 B CN 104541438B
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- Prior art keywords
- stator
- busbar
- hole
- main part
- phase
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/161—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14147—Positioning or centering articles in the mould using pins or needles penetrating through the insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C2045/1454—Joining articles or parts of a single article injecting between inserts not being in contact with each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/36—Plugs, connectors, or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/749—Motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
A kind of bus bar unit, it is formed by carrying out insert molding to multiple busbars, and multiple busbars are set along the axial alignment of stator, wherein, busbar includes：Main part, it is set along the circumferentially extending of stator；Through hole, it is formed at main part, and when carrying out insert molding for fulcrum post the axially penetrating through along stator of the main part for supporting other busbars；And protuberance, its sidepiece for corresponding to through hole and being arranged on main part, and the sectional area in Enlarge the main parts portion.
Description
Technical field
The present invention relates to it is a kind of be connected to motor, generator winding bus bar unit.
Background technology
A kind of bus bar unit is disclosed in Japanese JP2011-205875A, the bus bar unit is in U phases busbar, V
It is equipped with insulative resin between phase busbar and W phases busbar these three ring-type busbars, and by these busbars along stator
It is axially stacked.
Following content is disclosed in Japanese JP2011-88406A：Multiple busbars are being supported using the fulcrum post of mould
In the state of, using insulative resin by these busbar insert moldings, so as to form bus bar unit.
In the main part for forming the busbar of bus bar unit formed with through hole, other are supported when carrying out insert molding
The fulcrum post of the main part of busbar runs through the through hole.The sectional area for forming through hole then main part in busbar if so subtracts
It is few, therefore when motor is when driving, conductor resistance becomes larger at through hole forming position, causes the magnitude of current drop for flowing through main part
It is low.
The content of the invention
It is an object of the invention to provide it is a kind of even if being the main part of busbar formed with through hole in the case of
It can suppress to flow through the bus bar unit that the magnitude of current of the busbar reduces.
Some way according to the present invention, there is provided a kind of bus bar unit, it is by being embedded in into multiple busbars
Shape and formed, and above-mentioned multiple busbars along stator axial alignment set, wherein, above-mentioned multiple busbars include：Main body
Portion, it is set along the circumferentially extending of said stator；Through hole, it is formed at aforementioned body portion, and is supplied when carrying out insert molding
The fulcrum post in the aforementioned body portion for supporting the predetermined busbar in above-mentioned multiple busbars is passed through along the axial direction of said stator
Wear；And protuberance, its sidepiece for corresponding to above-mentioned through hole and being arranged on aforementioned body portion, and expand the section in aforementioned body portion
Product.
Brief description of the drawings
Fig. 1 is the brief diagram for the stator for forming three-phase alternating current motor.
Fig. 2 is the stereogram of the bus bar unit of present embodiment.
Fig. 3 is the stereogram for eliminating the bus bar unit under insulation division state.
Fig. 4 is the partial front elevation view of busbar.
Fig. 5 is the diagrammatic cross-section of mould used in insert molding.
Fig. 6 is the schematic diagram for illustrating insert molding.
Fig. 7 is the partial front elevation view of the busbar of the 1st variation.
Fig. 8 is the partial front elevation view of the busbar of the 2nd variation.
Embodiment
Hereinafter, the embodiments of the present invention will be described with reference to the drawings.
Fig. 1 is the composition figure for representing to form the stator 1 of three-phase alternating current motor.
The circular stator core 3 of housing 2 is being held in a manner of protruding inwardly formed with multiple teeth (not shown)
Portion.Copper wire is wound with each teeth portion, coil 4 is constituted using the conducting wire of winding.
On stator core 3 18 coils 4 are annularly equipped with along the circumferential direction of stator 1.Coil 4 is by U phase coil 4U, V phase lines
Enclose 4V and W phase coils 4W to form, configured with two for one group of in-phase coil 4 along the circumferential of stator 1 with 120 degree of intervals.Cause
This, 1 group of U phase coils 4U, 1 group of V phase coils 4V and 1 group of W phase coils 4W are equipped with 3 groups in order along the circumferential direction of stator 1.
In coil 4U, 4V, 4W of adjacent same phase, each winding ends 5 are connected each other.In addition, U phase coils 4U, V
Phase coil 4V and W phase coil 4W is connected to bus bar unit 100 by another winding ends 6 (with reference to Fig. 2).
Converge with reference to Fig. 2 and Fig. 3 to the U phases of the bus bar unit 100 arranged on motor and composition bus bar unit 100
Bar 10, V phases busbar 20, W phases busbar 30, busbar, that is, N phases busbar 40 for neutral point illustrate.
Bus bar unit 100 shown in Fig. 2 is installed on the axial end portion of stator 1 with stator 1 (with reference to Fig. 1) in same heart shaped.
As shown in FIG. 2 and 3, bus bar unit 100 includes being connected to the U phases busbar 10 of U phase coils 4U, is connected to
The V phases busbar 20 of V phase coils 4V, the W phases busbar 30 for being connected to W phase coils 4W, the N for being connected to each phase coil 4U, 4V, 4W
Phase busbar 40 and the insulation division 50 that each phase busbar 10,20,30,40 is remained to state of insulation.Bus bar unit 100
It is so as to integrally formed annular component by using insulative resin by each 10,20,30,40 insert molding of phase busbar.Absolutely
Edge 50 is formed by curing insulative resin.
As shown in figure 3, U phases busbar 10 includes：Main part 11, it is formed as circular board member；It is extended
Portion 12, the radial outside of its main body 11 to stator 1 are extended；Coil connecting portion 13, it is arranged on extended portion 12
Outboard end；And U phase terminals 14, axially extending setting of its main body 11 along stator 1, and it is connected to exterior wiring.
Main part 11 is set in a manner of thickness of slab direction is consistent with the axial direction of stator 1 along the circumferentially extending of stator 1.Extension is set
Portion 12 is put along the circumferential with equal intervals equipped with 3 of main part 11.Coil connecting portion 13 is formed as on the top of extended portion 12
It is hook-shaped.Coil connecting portion 13 is connected to the winding ends 6 of U phase coils 4U.
V phases busbar 20 includes：Main part 21, it is formed as circular board member；Extended portion 22, its is autonomous
The radial outside of body portion 21 to stator 1 is extended；Coil connecting portion 23, it is arranged on the outboard end of extended portion 22；And V
Phase terminal 24, axially extending setting of its main body 21 along stator 1, and it is connected to exterior wiring.
Main part 21 is set in a manner of thickness of slab direction is consistent with the axial direction of stator 1 along the circumferentially extending of stator 1.Extension is set
Portion 22 is put along the circumferential with equal intervals equipped with 3 of main part 21.Coil connecting portion 23 is formed as on the top of extended portion 22
It is hook-shaped.Coil connecting portion 23 is connected to the winding ends 6 of V phase coils 4V.
W phases busbar 30 includes main part 31, it is formed as circular board member；Extended portion 32, its is autonomous
The radial outside of body portion 31 to stator 1 is extended；Coil connecting portion 33, it is arranged on the outboard end of extended portion 32；And W
Phase terminal 34, axially extending setting of its main body 31 along stator 1, and it is connected to exterior wiring.
Main part 31 is set in a manner of thickness of slab direction is consistent with the axial direction of stator 1 along the circumferentially extending of stator 1.Extension is set
Portion 32 is put along the circumferential with equal intervals equipped with 3 of main part 31.Coil connecting portion 33 is formed as on the top of extended portion 32
It is hook-shaped.Coil connecting portion 33 is connected to the winding ends 6 of W phase coils 4W.
N phases busbar 40 includes：Main part 41, it is formed as circular board member；Extended portion 42, its is autonomous
The radial outside of body portion 41 to stator 1 (with reference to Fig. 1) are extended；And coil connecting portion 43, it is arranged on extended portion 42
Outboard end.
Main part 41 is set in a manner of thickness of slab direction is consistent with the axial direction of stator 1 along the circumferentially extending of stator 1.Extension is set
Portion 42 is put along the circumferential with equal intervals equipped with 9 of main part 41.Coil connecting portion 43 is formed as on the top of extended portion 42
It is hook-shaped.Coil connecting portion 43 is connected to the winding ends 6 of U phase coils 4U, the winding ends 6 of V phase coils 4V and W phase coils 4W
Winding ends 6.
Above-mentioned U phases busbar 10, V phases busbar 20, W phases busbar 30 and N phases busbar 40 pass through to from electric conductivity
Sheet blank be punched out out after component carry out bending process etc. and formed.
As shown in FIG. 2 and 3, bus bar unit 100 is arranged in order setting (stacking) N phase busbars from 1 side of stator
40th, V phases busbar 20, U phases busbar 10, W phases busbar 30 and form.Adjacent each phase busbar 10,20,30,40 it
Between be equipped with insulation division 50, ensure that the electrical insulating property between each phase busbar 10,20,30,40 using insulation division 50.It is each mutually to converge
The relative position of the stator circumferential direction of bar 10,20,30,40 is adjusted to, extended portion 12,22,32,42 and coil connecting portion
13rd, 23,33,43 is circumferential to stagger at equal intervals along stator.Bus bar unit 100 by from the electric current that power supply (not shown) supplies via
Be supplied to as the U phase terminals 14 of outside terminal, V phase terminals 24 and W phase terminals 34 U phase coils 4U, V phase coil 4V and
W phase coils 4W.
Bus bar unit 100 is by using insulative resin to the U phase busbars that are configured in mould 200 (with reference to Fig. 5)
10th, V phases busbar 20, W phases busbar 30 and N phases busbar 40 carry out insert molding and are formed.
As shown in figure 5, mould 200 includes the lower die 210 being configured at below vertical and the top for being configured at lower die 210
Upper mold 220.
Upper mold 220 has injection hole 230, which runs through the upper mold 220 along the vertical direction, and is used for mould
The insulative resin of injection melting in 200.
The upper surface for the main part 11,21,31,41 for being used to support each phase busbar 10,20,30,40 is equipped with upper mold 220
Fulcrum post 221, lower die 210 be equipped be used for support under the main part 11,21,31,41 of each phase busbar 10,20,30,40
The fulcrum post 211 on surface.Fulcrum post 221 is respectively provided with three to each phase busbar 10,20,30,40, and fulcrum post 211 is also to each phase
Busbar 10,20,30,40 is respectively provided with three.The length of fulcrum post 211,221 correspond to supported each phase busbar 10,20,
30th, 40 above-below direction position and set.
In addition, in Figure 5, for the purpose of simplifying the description, four groups are illustrate only for upper next group of fulcrum post 211,221, but
It is to be indeed provided with next group on 12 groups of fulcrum post 211,221.It's not limited to that for the quantity of fulcrum post 211,221, but
Any setting as needed.
As shown in fig. 6, when carrying out insert molding, each phase busbar 10,20,30,40 by fulcrum post 211,221 and with
The laminated arrangement for separating predetermined space along the vertical direction is held in mould 200.In addition, in figure 6, eliminate each phase terminal
14th, 24,34, extended portion 12,22,32,42 of a part etc. and show.
Since fulcrum post 211,221 supports the relation of the main part 11,21,31,41 of each phase busbar 10,20,30,40,
As shown in figure 4, the main part 11 in U phases busbar 10 is formed through through hole 15, the through hole 15 is for supporting except U phases are converged
The fulcrum post 211,221 of each phase busbar 20,30,40 beyond bar 10 runs through along stator shaft orientation.
As shown in figure 4, through hole 15 is formed at the width midway position of main part 11, and between making a reservation for along stator circumferentially spaced
Every equipped with 9.It's not limited to that for the quantity of formation of through hole 15, and the quantity for corresponding to fulcrum post 211,221 is arbitrarily set
It is fixed.
In addition, the sidepiece of the main part 11 in U phases busbar 10, the position that corresponding through hole 15 is formed, are integrally formed
There is the protuberance 16 of the sectional area in Enlarge the main parts portion 11.Protuberance 16 be main body 11 inner circumferential and periphery along stator radially
Prominent semicircle tabular component.The thickness of protuberance 16 is set to identical with the thickness of slab of main part 11.In addition, protuberance 16
Main part 11 can be not integrally formed at, and main part 11 is arranged on as individual member.
Protuberance 16 circumferentially extends in a manner of by the side of through hole 15 along stator to be set.A pair of of protuberance 16 is determined
The overhang L1 of sub- radial direction by the overhang L1a, L1b of the stator radial direction of inner side and the protuberance 16 in outside and to represent,
Overhang L1 is set to be greater than the hole length L2 of the stator radial direction of through hole 15.
In this way, since U phases busbar 10 is in the protuberance of sectional area of the side of through hole 15 with Enlarge the main parts portion 11
16, therefore the forming position conductor resistance that can suppress in motor driving etc. in through hole 15 becomes larger and can pass through main part
11 magnitude of current reduces.
In addition, as shown in figure 4, also each phase busbar 20,30,40 beyond U phases busbar 10 with U phases formed with converging
The through hole 25,35,45 and protuberance 26,36,46 of 16 identical function of through hole 15 and protuberance of bar 10.Therefore, this
A little V phases busbar 20, W phases busbar 30 and N phases busbars 40 can also suppress the forming position in through hole 25,35,45
It can be reduced by the magnitude of current of main part 21,31,41.
Next, illustrated with reference to insert moldings of the Fig. 6 to bus bar unit 100.As shown in fig. 6, each phase busbar
10th, 20,30,40 according to W phases busbar 30, U phases busbar 10, V phases busbar 20, N phases busbar 40 assembled in sequence under
Mould 210.Afterwards, upper mold 220 is closed relative to lower die 210.
In the state of upper mold 220 is closed, the main part 31 of W phases busbar 30 by the fulcrum post 211 of lower die 210, with
And the fulcrum post of the through hole 15,25,45 through each phase busbar 10,20,40 in addition to W phases busbar 30 of upper mold 220
221 clampings.At this time, the main part 11 of U phases busbar 10 is by the supporting of the through hole 35 through W phases busbar 30 of lower die 210
Pin 211 and the fulcrum post 221 through V phases busbar 20 and the through hole 25,45 of N phases busbar 40 of upper mold 220 clamp.V
The main part 21 of phase busbar 20 is by the through hole 15,35 for passing through U phases busbar 10 and W phases busbar 30 of lower die 210
The fulcrum post 221 of fulcrum post 211 and the through hole 45 through N phases busbar 40 of upper mold 220 clamps.N phases busbar 40
Main part 41 is by the through hole 15,25,35 through each phase busbar 10,20,30 in addition to N phases busbar 40 of lower die 210
Fulcrum post 211 and the fulcrum post 221 of upper mold 220 clamp.
In this way, for each phase busbar 10,20,30,40, using fulcrum post 211,221 from upper and lower holder body portion 11,
21st, 31,41, so as to remain the laminated arrangement along the vertical direction with predetermined gap.In this condition, from upper mold 220
In the space that the insulative resin injection division of melting is formed between upper mold 220 and lower die 210 by injection hole 230.Due to each
Phase busbar 10,20,30,40 is supported by the clamping of pin 211,221, therefore each phase busbar caused by insulative resin pressure
10th, 20,30,40 movement is limited.It is accordingly possible to ensure insulation between adjacent each phase busbar 10,20,30,40 away from
From.
After insulative resin curing, upper mold 220 and lower die 210 are removed, then the bus bar unit shown in Fig. 2 is made
100。
According to the above embodiment, effect as shown below is played.
Each phase busbar 10,20,30,40 main part 11,21,31,41 be equipped with for mould 200 fulcrum post 211,
221 perforative through holes 15,25,35,45, in the sidepiece of main part 11,21,31,41, corresponding 15,25,35,45 institute of through hole
The position of formation and be equipped with protuberance 16,26,36,46.Therefore, it is possible to suppress the through hole 15 of main part 11,21,31,41,
25th, the reduction of the sectional area at 35,45 forming position, so as to suppress that in motor driving etc. main part can be passed through
11st, 21,31,41 magnitude of current reduces.
The protuberance 16,26,36,46 of each phase busbar 10,20,30,40 is to pass through the side of through hole 15,25,35,45
Mode along stator circumferentially extend set.The overhang L1 of the stator radial direction of a pair of of protuberance 16,26,36,46 is set to greatly
In the hole length L2 of the stator radial direction of through hole 15,25,35,45, therefore main part 11,21,31,41 can be reliably suppressed
The reduction of sectional area at the forming position of through hole 15,25,35,45.Thereby, it is possible to further improve to through hole 15,25,
35th, the magnitude of current at 45 forming position reduces the effect suppressed.
Next, each phase busbar 10,20,30,40 of variation is illustrated with reference to Fig. 7 and Fig. 8.
In each phase busbar 10,20,30,40 of the 1st variation shown in Fig. 7, through hole 15,25,35,45 is formed at
Close to the position of 11,21,31,41 periphery of main part.
In addition, protuberance 16,26,36,46 from the side of through hole 15,25,35,45 and be main part 11,21,31,
41 outer outer circumferential protrudes to be formed.Protuberance 16,26,36,46 is formed as semicircle tabular component.Protuberance 16,26,36,46
Stator radial direction overhang L1 be set to be greater than through hole 15,25,35,45 stator radial direction hole length L2.
In the case of each phase busbar 10,20,30,40 is formed as shown in Figure 7, it can also suppress penetrating through
The forming position in hole 15,25,35,45 can be reduced by the magnitude of current of main part 11,21,31,41.Further, since protuberance
16th, 26,36,46 a sidepiece of main part 11,21,31,41 is only formed at, therefore is easy to be punched into each phase busbar from blank
10th, 20,30,40, yield rate when busbar is cut can be improved.
In addition, in U phases busbar 10, V phases busbar 20, W phases busbar 30 and N phases busbar 40, can also incite somebody to action
Through hole 15,25,35,45 is formed close to the position of 11,21,31,41 inner circumferential of main part, makes protuberance 16,26,36,46 certainly
The side of through hole 15,25,35,45 and be that the inner circumferential of main part 11,21,31,41 protrudes inwardly to be formed.
In each phase busbar 10,20,30,40 of the 2nd variation shown in Fig. 8, through hole 15,25,35,45 is with to master
The mode of the peripheral openings in body portion 11,21,31,41 is formed as U-shaped nick shaped.
In addition, to be formed as width wider than the main part of the busbar shown in Fig. 4 and Fig. 7 for main part 11,21,31,41
Degree is wide.More specifically, the width of the main part 11,21,31,41 of each phase busbar 10,20,30,40 be set to than Fig. 4 with
And the wide W1 of width of the main part of the busbar shown in Fig. 7.So expansion radially expanded along stator of main part 11,21,31,41
Big width W1 is set to be greater than the hole length L2 of the stator radial direction of through hole 15,25,35,45.
In the case of each phase busbar 10,20,30,40 is formed as shown in Figure 8, it can also suppress penetrating through
The forming position in hole 15,25,35,45 can be reduced by the magnitude of current of main part 11,21,31,41.Further, since each mutually converge
Stream bar 10,20,30,40 is in the hole length corresponding to through hole 15,25,35,45 and has widened the width of main part 11,21,31,41
The simple shape of degree, therefore each phase busbar 10,20,30,40 easily is punched into from blank, so as to improve busbar punching
When yield rate.
In addition, in U phases busbar 10, V phases busbar 20, W phases busbar 30 and N phases busbar 40, can also incite somebody to action
Through hole 15,25,35,45 is cut into U-shaped in a manner of the inner circumferential opening to main part 11,21,31,41, and by main part
11st, 21,31,41 width is formed as wider W1 than the width of the main part of the busbar shown in Fig. 4 and Fig. 7.
Embodiments of the present invention are this concludes the description of, but the above embodiment illustrate only the one of the application examples of the present invention
Part, its objective simultaneously do not lie in the concrete structure that the technical scope of the present invention is defined in the above embodiment.
Present embodiment is not limited to carry out four each phase busbars 10,20,30,40 situation of insert molding, also can
It is enough to be applied to the busbar of more than two with the situation of laminated arrangement insert molding.
In the present embodiment, bus bar unit 100 is applied to motor, but can also be applied to generator.
In the present embodiment, U phases busbar 10, V phases busbar 20, W phases busbar 30 and N phases busbar 40 are circle
Ring-shaped is but it is also possible to be arc-shaped.
In the present embodiment, exemplified with the three-phase alternating current motor with 18 coils 4, but the number of coil and unlimited
Due to this.
In the present embodiment, an insert molding is carried out to four each phase busbars 10,20,30,40 and forms remittance
Bar unit 100 is flowed, but bus bar unit 100 can also be formed by multiple insert molding.For example, it can be
It is laminated at predetermined spaced intervals after two panels busbar in mould, injects insulative resin into a mould and perform one
Secondary insert molding, forms once-forming component.Afterwards, remaining busbar and once-forming component are configured in 2 moulds, to
Insulative resin is injected in secondary mould and performs secondary insert molding, so as to form bus bar unit 100.
In addition, in the present embodiment, supported respectively by the fulcrum post 211,221 of mould 200 when carrying out insert molding
Phase busbar 10,20,30,40, but it's not limited to that for busbar bearing method.For example, it is also possible to will remove fulcrum post 211,
Supporting member beyond 221 is arranged in mould 200, and each phase confluence is supported using supporting member and fulcrum post 211,221
Bar 10,20,30,40.
Moreover, in the present embodiment, each phase busbar 10,20,30,40 is from stator side with N phases busbar 40, V phases
Busbar 20, U phases busbar 10, the order of W phases busbar 30 arrange, but can also be that others put in order.
The application is preferential based on the Patent 2013-47238 requirements filed an application to Japan Office on March 8th, 2013
Power, and the entire disclosure of which is programmed into this specification in a manner of reference.
Claims (2)
1. a kind of bus bar unit, it is formed by carrying out insert molding to multiple busbars, and above-mentioned multiple busbars
Set along the axial alignment of stator, it is characterised in that
Above-mentioned multiple busbars include：
Main part, it is set along the circumferentially extending of said stator；
Through hole, it is formed at aforementioned body portion, and when carrying out insert molding for for supporting in above-mentioned multiple busbars
Fulcrum post the axially penetrating through along said stator in the aforementioned body portion of predetermined busbar；And
Medial extrusion and portion protruding outside, the Medial extrusion and outer projecting portion do not correspond to above-mentioned through hole and are arranged on upper
Radially, aforementioned body portion the inner side and outer side of stator is stated, and expands the sectional area in aforementioned body portion,
The above-mentioned Medial extrusion in aforementioned body portion is in the overhang radially of said stator and above-mentioned portion protruding outside upper
The total overhang for stating the overhang radially of stator is set greater than above-mentioned through hole in the hole radially of said stator
Length.
2. bus bar unit according to claim 1, it is characterised in that
The center in the center of above-mentioned Medial extrusion and above-mentioned portion protruding outside be located at said stator it is radially, by above-mentioned
On the substantially straight radial line at the center of through hole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-047238 | 2013-03-08 | ||
| JP2013047238A JP2014176209A (en) | 2013-03-08 | 2013-03-08 | Busbar unit |
| PCT/JP2014/051511 WO2014136491A1 (en) | 2013-03-08 | 2014-01-24 | Busbar unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104541438A CN104541438A (en) | 2015-04-22 |
| CN104541438B true CN104541438B (en) | 2018-04-13 |
Family
ID=51491017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480002098.2A Active CN104541438B (en) | 2013-03-08 | 2014-01-24 | Bus bar unit |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9831736B2 (en) |
| JP (1) | JP2014176209A (en) |
| CN (1) | CN104541438B (en) |
| WO (1) | WO2014136491A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10630127B1 (en) * | 2017-01-06 | 2020-04-21 | Apple Inc. | Electric motor with bar wound stator and end turn cooling |
| DE102017211168A1 (en) * | 2017-06-30 | 2019-01-03 | Zf Friedrichshafen Ag | Stator interconnection device for a rotating electrical machine |
| JP7004197B2 (en) * | 2017-09-22 | 2022-01-21 | 株式会社オートネットワーク技術研究所 | Electrical connection member |
| JP2019062630A (en) * | 2017-09-26 | 2019-04-18 | 日本電産株式会社 | motor |
| WO2019088424A1 (en) * | 2017-10-31 | 2019-05-09 | 엘지이노텍 주식회사 | Bus bar and motor comprising same |
| CN108390519A (en) * | 2018-03-06 | 2018-08-10 | 崔金益 | A kind of busbar |
| FR3085806B1 (en) * | 2018-09-07 | 2021-07-09 | Valeo Equip Electr Moteur | ROTATING ELECTRIC MACHINE INTERCONNECTOR |
| CN113394586B (en) * | 2020-03-13 | 2023-07-25 | 日本电产株式会社 | Bus bar assembly, motor, electric product, and method for manufacturing bus bar assembly |
| FR3108809B1 (en) * | 2020-03-25 | 2022-10-28 | Nidec Psa Emotors | Connection device for stator |
| DE102021101149A1 (en) | 2021-01-20 | 2022-07-21 | Schaeffler Technologies AG & Co. KG | high-voltage terminal |
| CN112936731A (en) * | 2021-02-05 | 2021-06-11 | 深圳市凯中精密技术股份有限公司 | Hardware fitting positioning mechanism and injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545448A (en) * | 2010-11-05 | 2012-07-04 | Lg伊诺特有限公司 | Bus bar of eps motor |
| CN102782995A (en) * | 2010-03-03 | 2012-11-14 | 日本电产株式会社 | Stator and motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3927319B2 (en) * | 1998-06-18 | 2007-06-06 | 日本電産株式会社 | motor |
| JP3733316B2 (en) | 2001-10-26 | 2006-01-11 | 住友電装株式会社 | Centralized power distribution member for thin brushless motor for vehicles |
| JP4662200B2 (en) * | 2004-09-29 | 2011-03-30 | 日本電産株式会社 | Motor and busbar |
| JP4600494B2 (en) | 2008-03-04 | 2010-12-15 | 住友電装株式会社 | Busbar substrate and method for manufacturing circuit structure |
| JP5239413B2 (en) | 2008-03-13 | 2013-07-17 | 日本電産株式会社 | motor |
| JP2009290921A (en) * | 2008-05-27 | 2009-12-10 | Mitsuba Corp | Brushless motor |
| JP5446722B2 (en) | 2009-10-26 | 2014-03-19 | 日立金属株式会社 | Busbar module manufacturing method and busbar module |
| JP5703604B2 (en) | 2010-03-03 | 2015-04-22 | 日本電産株式会社 | Bus bar unit and motor |
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2013
- 2013-03-08 JP JP2013047238A patent/JP2014176209A/en active Pending
-
2014
- 2014-01-24 CN CN201480002098.2A patent/CN104541438B/en active Active
- 2014-01-24 WO PCT/JP2014/051511 patent/WO2014136491A1/en active Application Filing
- 2014-01-24 US US14/436,084 patent/US9831736B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102782995A (en) * | 2010-03-03 | 2012-11-14 | 日本电产株式会社 | Stator and motor |
| CN102545448A (en) * | 2010-11-05 | 2012-07-04 | Lg伊诺特有限公司 | Bus bar of eps motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014176209A (en) | 2014-09-22 |
| CN104541438A (en) | 2015-04-22 |
| US9831736B2 (en) | 2017-11-28 |
| US20150263580A1 (en) | 2015-09-17 |
| WO2014136491A1 (en) | 2014-09-12 |
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